package com.ncut.controller.user;

import com.ncut.constant.StatusConstant;
import com.ncut.entity.Dish;
import com.ncut.result.Result;
import com.ncut.service.DishService;
import com.ncut.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @FileName DishController
 * @Description
 * @Author Sword
 * @date 2025-07-15
 **/

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "用户端-菜品相关接口")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类id查询菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        log.info("根据分类id查询菜品：{}", categoryId);

        String key = "dish_" + categoryId;
        //查询redis中是否存在菜品数据
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);

        //如果存在，直接返回，无需查询数据库
        if (list != null && list.size() > 0) {
            return Result.success(list);
        }

        //如果不存在，查询数据库，将查询到的数据放入redis中
        Dish dish = Dish.builder()
                .categoryId(categoryId)
                .status(StatusConstant.ENABLE)
                .build();

        list = dishService.listWithFlavors(dish);
        redisTemplate.opsForValue().set(key, list);

        return Result.success(list);
    }

    /**
     * 根据id查询菜品详细
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品详细")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品详细：{}", id);
        DishVO dishVO = dishService.getByIdWithFlavors(id);
        return Result.success(dishVO);
    }
}
